Flutter/์ผ๋ฐ˜

๋“ค์–ด๊ฐ€๊ธฐ ์•ž์„œ ๊ทธ๋™์•ˆ Flutter๋กœ ๊ฐœ๋ฐœ์„ ํ•ด์˜ค๋ฉด์„œ Future๋ฅผ ๋งŽ์ด ์‚ฌ์šฉํ•ด๋ณด์•˜๋Š”๋ฐ, ์ƒ๊ฐ๋ณด๋‹ค ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”์ง€ ์˜๊ตฌ์‹ฌ์„ ๊ฐ€์ง€๋ฉด์„œ ์ฝ”๋”ฉํ•˜์ง€ ์•Š์•˜๋‹ค. ๋‹จ์ˆœํ•˜๊ฒŒ await๋ฅผ ์“ฐ๋ฉด ๊ธฐ๋‹ค๋ฆฌ๊ณ  Future๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด ์ผ๋‹จ ์–˜๋Š” ๊ธฐ๋‹ค๋ฆฌ๋ฉด ๋‚˜์ค‘์— ๊ฐ’์„ ์ฃผ๋Š” ์–˜๊ตฌ๋‚˜ ๋ผ๊ณ  ๋ง‰์—ฐํ•˜๊ฒŒ ์ƒ๊ฐํ–ˆ๋‹ค. ์ด๋ฒˆ ๊ธฐํšŒ์— ์ž์„ธํžˆ ์•Œ์•„๋ณด๋ฉด์„œ ๊ทธ์— ๋Œ€ํ•œ ๊ณต๋ถ€ ๋‚ด์šฉ์„ ์ •๋ฆฌํ•˜๊ณ ์ž ํ•œ๋‹ค. 1. Dart์˜ ๋น„๋™๊ธฐ ๋™์ž‘ ์›๋ฆฌ Dart๋Š” ์‹ฑ๊ธ€ ์Šค๋ ˆ๋“œ๋กœ ์šด์˜๋˜๋Š” ์–ธ์–ด์ด๋‹ค. Dart์—์„œ Future๊ฐ€ ์žˆ๋‹ค๋ฉด ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„œ๋Š” Promise๊ฐ€ ์žˆ๋‹ค, ๋‘˜๋‹ค ์‹ฑ๊ธ€ ์Šค๋ ˆ๋“œ๋กœ ๋™์ž‘์ด ๋œ๋‹ค. ๊ทธ๋ ‡๋‹ค๋ฉด ์‹ฑ๊ธ€ ์Šค๋ ˆ๋“œ๋Š” ์–ด๋–ป๊ฒŒ ๋™์ž‘์„ ํ•˜๋Š” ๊ฒƒ์ผ๊นŒ? for(int i=0; i print('Future is complete')); print('After the Futur..
1. ๋ฌธ์ œ์˜ ๋ฐœ๋‹จ ๊ฐœ๋ฐœ์„ ํ•˜๋˜ ์ค‘์— ์œ„ ์‚ฌ์ง„์— ๋นจ๊ฐ„์ƒ‰ ๋ฐ•์Šค ๋ถ€๋ถ„, ์ฆ‰ ์ œํ’ˆ ๊ฒ€์ƒ‰ ๊ฐ€๋กœ ๋ถ€๋ถ„ ์ค‘ ์–ด๋””๋ฅผ ํด๋ฆญํ•ด๋„ GestureDetector๋ฅผ ํ†ตํ•ด ์ธ์‹์„ ํ•˜๊ฒŒ ๋งŒ๋“ค๊ณ  ์‹ถ์—ˆ์Šต๋‹ˆ๋‹ค. Row( children: [ Expanded( child: GestureDetector( onTap: () { print('Clicked'); }, // ํ•œ ์˜์—ญ ๋ถ€๋ถ„ ์–ด๋””๋ฅผ ํด๋ฆญํ•ด๋„ ์ธ์‹๋˜๋„๋ก ์ปจํ…Œ์ด๋„ˆ๋กœ ๊ฐ์‹ธ๊ธฐ child: Container( child: const Row( children: [ Icon(Icons.search, color: Colors.grey), SizedBox(width: 10), Text('์ œํ’ˆ ๊ฒ€์ƒ‰', style: TextStyle(color: Colors.grey)), ], ), ), ), ), ...
PlayStore๋‚˜ AppStore ์–ด๋Š ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์„ ๋‹ค์šด์„ ๋ฐ›์•„๋„ ํšŒ์›๊ฐ€์ž… ์•ฝ๊ด€ ๋™์˜ ํŽ˜์ด์ง€๋Š” ๋งŽ์ด ๋ดค์„ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์Šคํ† ์–ด์— ์•ฑ์„ ์˜ฌ๋ฆด๋•Œ ํšŒ์›๊ฐ€์ž…/๋กœ๊ทธ์ธ/๊ฐœ์ธ์ •๋ณด ๋“ฑ ์‚ฌ์šฉ์ž์˜ ์ •๋ณด๋ฅผ ๋ฐ›์•„์•ผ ํ•˜๊ฒŒ ๋œ๋‹ค๋ฉด ํ•„์ˆ˜์ ์œผ๋กœ ๊ฐœ์ธ์ •๋ณด์ฒ˜๋ฆฌ๋ฐฉ์นจ์„ ๋„ฃ์–ด์•ผ๋งŒ ์Šน์ธ์„ ํ•ด์ฃผ๊ธฐ ๋•Œ๋ฌธ์ด๋‹ค. ๊ทธ๋ž˜์„œ ์ด ํŽ˜์ด์ง€๋ฅผ ์ œ์ž‘ํ•ด ๋ณด๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ํ‰๊ท ์ ์œผ๋กœ ์ฒดํฌ๋ฐ•์Šค๋Š” 3๊ฐ€์ง€ ํƒ€์ž…์˜ ์œ ํ˜•์„ ๋”ฐ๋กœ ๋งŒ๋“ค์–ด ์ฃผ์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. 1. ๋ชจ๋‘ ๋™์˜ ( ๋ชจ๋“  ๋™์˜๋ฅผ ํ•˜๋Š” ์ฒดํฌ๋ฐ•์Šค ) 2. ํ•„์ˆ˜ ๋™์˜ ( ๋ฐ˜๋“œ์‹œ ํ•ด์•ผ๋งŒ ๋‹ค์ŒํŽ˜์ด์ง€ ๋„˜์–ด๊ฐˆ ์ˆ˜ ์žˆ๋‹ค. ) 3. ์„ ํƒ์  ๋™์˜ ( ์•ˆํ•ด๋„ ๋‹ค์Œ ํŽ˜์ด์ง€๋กœ ๋„˜์–ด ๊ฐˆ ์ˆ˜ ์žˆ๋‹ค. ) ๊ทธ๋ฆฌ๊ณ  ๋งŒ์•ฝ ํ•„์ˆ˜ ๋™์˜๊ฐ€ ์ „๋ถ€ ์ฒดํฌ๊ฐ€ ๋˜์—ˆ๋‹ค๋ฉด ๊ฐ€์ž…ํ•˜๊ธฐ ๋ฒ„ํŠผ์ด ํ™œ์„ฑํ™” ๋˜์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ์ž ๊ทธ๋Ÿผ ์ด์ œ ๊ตฌํ˜„ํ•ด์•ผํ•˜๋Š” ์›๋ฆฌ๋Š” ๋Œ€๊ฐ• ์•Œ์•˜์œผ๋‹ˆ ํ•˜๋‚˜์”ฉ ๋œฏ๊ณ  ..
์œ„์™€ ๊ฐ™์€ ํ…์ŠคํŠธํ•„๋“œ์—์„œ ์ž…๋ ฅ์„ ์ˆซ์ž๋กœ๋งŒ ์ œํ•œ์„ ํ•˜๊ณ ์ž ํ• ๋•Œ TextField( keyboardType: TextInputType.number, // ์ˆซ์ž๋งŒ ์ž…๋ ฅ๊ฐ€๋Šฅ inputFormatters: [ FilteringTextInputFormatter.digitsOnly, ], cursorColor: Colors.grey, decoration: InputDecoration( border: InputBorder.none, filled: true, fillColor: Colors.grey[300], ), ), KeyboardType์„ ํ†ตํ•ด ์›ํ•˜๋Š” ๊ฐ’์„ ์ง€์ • ํ•  ์ˆ˜ ์žˆ๋‹ค. keyboardType: TextInputType.number ํ•˜์ง€๋งŒ ๋ฐœ์ƒ๋˜๋Š” ๋ฌธ์ œ์ ์œผ๋กœ๋Š” ๋งŒ์•ฝ ์‚ฌ์šฉ์ž๊ฐ€ ํ•ธ๋“œํฐ์„ ๋ธ”๋ฃจํˆฌ์Šค ํ‚ค๋ณด๋“œ๋กœ ์—ฐ๊ฒฐ์„ ..
final List numbers = List.generate( 100, // ์ด ๊ธธ์ด (index) => index, // ์ˆซ์ž์˜ ์ˆœ์„œ ); 2๊ฐœ์˜ ์ธ์ž๊ฐ’์„ ๋ฐ›๋Š”๋ฐ 1. length 2. (index) 1๋ฒˆ์—๋Š” ์ด ๊ธธ์ด์˜ int์˜ ๊ฐ’์„ ๋„ฃ์–ด์ฃผ๋ฉด ๋˜๊ณ  2๋ฒˆ์—๋Š” ์ˆซ์ž๊ฐ€ ์–ด๋–ป๊ฒŒ ์ฆ๊ฐ€๋ ์ง€์˜ ๊ฐ’์„ ์ ์–ด์ฃผ๋ฉด ๋œ๋‹ค. ๋งŒ์•ฝ ์œ„ ์ฝ”๋“œ๋ฅผ ๊ทธ๋Œ€๋กœ ์‹คํ–‰ํ• ์‹œ 1,2,3 .. 99 ๊นŒ์ง€ ์‹คํ–‰์ด ๋  ๊ฒƒ์ด๊ณ  (index) => index * 2 ๋ฅผ ํ• ๊ฒฝ์šฐ 2์˜ ๋ฐฐ์ˆ˜๋กœ ์‹คํ–‰์ด ๋œ๋‹ค.
https://pub.dev/packages/mvc_pattern mvc_pattern | Flutter Package To develop apps using a framework following the MVC design pattern separating the app's 'interface' from its 'business logic' and from its 'data source' if any. pub.dev 1. MVCํŒจํ„ด์„ ์‚ฌ์šฉํ•ด์•ผ ํ•˜๋Š” ์ด์œ ์— ๋Œ€ํ•˜์—ฌ ๋งŒ์•ฝ ๋‚ด๊ฐ€ ํšŒ์‚ฌ์— ๋“ค์–ด๊ฐ€์„œ ํ”„๋กœ์ ํŠธ๋ฅผ ๋งก๊ฒŒ ๋˜๊ณ  ๋‚ด๊ฐ€ ํ˜ผ์ž์„œ ์ฝ”๋“œ๋ฅผ ์ž‘์„ฑํ•ด์„œ ๊ณ„์†ํ•ด์„œ ์œ ์ง€๋ณด์ˆ˜๋ฅผ ํ•˜๊ณ  ์žˆ๋‹ค๊ณ  ๊ฐ€์ •ํ•ด๋ณด์ž. ๋‹น์—ฐํžˆ ๋‚ด๊ฐ€ ์ž‘์„ฑํ•œ ์ฝ”๋“œ์ด๋ฏ€๋กœ ๋‚ด๊ฐ€ ๋ณด๊ธฐ ํŽธํ•˜๊ฒŒ ์ž‘์„ฑํ–ˆ์œผ๋ฏ€๋กœ ๋‚˜ ํ˜ผ์ž๋งŒ ๋ณธ๋‹ค ๊ฐ€์ •ํ•˜๋ฉด ๋ฌธ์ œ๊ฐ€ ์—†๋‹ค. ํ•˜์ง€๋งŒ ์‚ฌ์ •์ด ์ƒ๊ฒจ์„œ ..
Hac. Dog ๐ŸŒญ
'Flutter/์ผ๋ฐ˜' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๊ธ€ ๋ชฉ๋ก